Which of the following is equal to 142 ÷ 2? A. (100 ÷ 40) + (40 ÷ 2) + (2 ÷ 2) B. (100 + 2) ÷ (40 + 2) ÷ (2 + 2) C. (100 ÷ 2) -
2 answers:
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Answer:
The rate of change is ft^(2)/min
Step-by-step explanation:
The area of a circle is given by the following equation:
To solve this question, we have to realize the implicit differentiation in function of t. We have two variables, A and r. So
We have that:
.
We want to find
So
Since the area is in square feet, the rate of change is in ft^(2)/min.
So the rate of change is ft^(2)/min